Gas-engine.



No. 6'28,|24. Patented .Iuly 4, |899. Vl. 3. SHARPIECK.

VGAS ENGINE. y (Applimbn und up. 15. xm)

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ua. 028,124. Patented my 4, |899. i.w.. s; sHAnPnEcK; Y

GAS Exams.

(Application Mod Dept. 15, 1898.)

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WILLisM s. sHARPNEcK, oF CHIcAGo, lLLmols'AssiGNoR 0F Two-'ruines ToEvERErT W. BROOKS AND JOHN D. Ross, oF SAME PLACE.

srncmcs'glox rol-ang pm f 15mm' Patent No. ene,124, assed July 4, 189e.

Appunti ma espanta 1t. 189s. snm I9. 691mg. or man.)

To all when it may concern,.-

Be it knownthat I, WILLIAM S. SHABPNECK, a citizen of the United States, residing at Chicago, in the county of'Cook and State of Illi' nois, have invented a certain new and useful Improvement in Gas-Engines, of which the followingis a specification, referelice bein had to the accompanying drawings.

l rial Nes. 688,381 and 689,430, filed, respec-4 cheaply built,

This inventionis an improvement en -the style of engine shown in my applications, Se-

tively, August 1.1 and 23, 1898, and is intended to vmalte an engine of this class which will be durable in wear, and 4easil y managed.

To these ends the invention consists in the peculiar construction, arrangement, and combinationY of parts hereinafter more particu-' definitely claimedv larly described and then at the end hereof;

In the accompanying drawings, Figure 1 is an elevation of an engine constructed according to my invention with parts represented as broken away. Fig. 2 is a horizontal longitudinal section of the same, taken through the center of the cylinder. Fig. 3 is a similar sectionY with the piston in a different position.

Fig. 4 is a vertical section .through `the line :c z, Fig. 2, with some of the parts diagrammatically represented. Fig. 5 is asimilarsection, but with-parts in another position. Fig. 6 is a similar section through the opposite trunnion' and bearing. Fig. 7 Vis a similar section of a truunion for a reversible engine.

Referring now to' the details of the draw-" ings by numerals, 1 indicates the base, of any approved form, provided with pillow-blocks 2, in which is mounted the crank-shaft 3 and towhose wrist-pin 4 is connected the hollow piston 5 by the piston-rod 6.` Thepiston has an inlet-port -7 and an exhaust-port 8, which register at appropriate times' with the inletport 9 and the exhaust-port 10 of the cylinder 11, which latteris provided with suitable tru nnions 12 13 and oscillates in thepearings 14 15, rising from the base 1. The cylinder is cast double, soas to provide spaced around it to form a water-jacket. In the trunn-icns i on the near side of lthe engine the inletport 9 is formed, whose outer end communicates with thechamberfl?, as lshown in Fig.

5, in which is's'e'ithe inlet-pipe' 18. The exhansb-'port' 10 is f orniedin" the opposite ltrunnion 13, and ,its outer endl terminates in a long narrow openingas indicated in Figs. 1. 5 5 and 4', in order that theexhaust may berapidly cut olf by the oscillation-ef the cylinder. This i port registers at the appropriate time with the port 19, as shown in Fig. 3, which then allows the exhaust to pass into chamber 2O and from 6o thence 'ont through the-pipe 21`.

Any-suitable ignitig apparatus may be used; but I show one si milar to those indi'-v cated in my aforesaid applications, consisting of a suitably-insulated electric wire 22, 65 passing through the filling-block 23 and terminating in aspring 24, which is touched as the engine voperasites by the contact-piece 25 on the 'piston to complete the circuit and which when separated yby the motion of the- 7o piston creates a spark, and thus ignites the charge.

It is believed that the above description of vthe construction is sucien't to explain its operation; butin orderthatitsoperation may 75 be evident to Athe meanest capacity the fellowing brief description is given: `Supposing the engine to be connected with gas and a source of electricity, the engine turning in the direction'indicated by the arrow in Figs. 8o A1 and 4, and that the gas has just been-exploded, as the cylinder arrives in the position indicated at Fig. 3 the crank will be at the 'position-.30 on Fig. 4, which will make the porti 10 register with the port 19, and as the '85 piston-port 8 registers atv the same time with the port l0 the burned charge has free exit. As the crank continues its motion the com rnunicntion lbetween the exhaustports is broken, and thus a partial vacuum is formed 9o .inthe piston and cylinder, and as the crank reaches the position 31 the inlet-ports register, as shown in Fig. 2, and the charge 'rushes intofll the vacuum. VAs the engine exhnust-ports, as' indicated in said Fig. '7, ac-

cording to which way it is intended the engine should run. What vI claim as new s- 1. The combination in an engine, of an oscillating cylinder 11 having inlet-port 9 and exhaust-port in the trunnions thereof, bearings for said trunnions having ports 17 and 19 communicating at appropriate times with fthe ports 9 and 10, and thre piston 5 having a chamber open. at one end communicating with the ports 9 and 10, at suitable parts of its stroke, substantially as described.

2. The combination in an engine, of an oscillat-ing cylinder having an exhaust-port near the center of its length with a piston workingin said cylinder having a port regisfV tering with said exhaust-port at about thecenter of its stroke, and means forclosing the Vexhaust-port by themotion of the cylinder, substantially as described.

ne, of an os- 3. The combination in-an engl Countersigned C. H. DUELI.2

Commissioner of Patents.

that the samezmay conform t'o the record of the case in the Patent Oce...

signed, count/enigma, und sealed this 18th day of Ju1y ,s. n.. 1899.

cillating cylinder having an inlet-port in one" trunnion, and an exhaust-port in the other, of a hollow piston open at one endand working therein and provided with an .exhaustpost registering with the exhaust-port of the cylinder at about the center of its stroke, and an inlet-port rcgisterin g with said inlet in the Atrunnion, substantially at one end of the' stroke, substantially as described.

4. The combination in an engine of an oscillating cylinder, having inlet and exhaust ports formed in the cylinder-trnnnions, with a hollow pistomopen at one end andworking in said cylinder provided with an exhaustport, registering with the enhanst-port in the cylinder, a bearing for one of the trunnions having aport arranged to allow the burned charge to exhaust when the -piston is traveling in one direction and to close the exhaust when it is traveling in the other, substantially as described.

In testimony whereof I afx my signature,

in the presence of two witnesses,fthis 13th day of September, 1898.'

WILLIAM s'. SHARPNECK,

Witnesses: l

CAnEB H. MANSHALL, HIRAM MCCULLOUGH.

Avas-Engines, an error appears in the printed specication requiring correction, `as follows z, Page 2. lines 33-34 the compound word 'eihaustf-post should read exhaust po'rt,- and that the said Letters Patent should be read with this correction therein WEBSTER DAVIS, Assistant Secretary of the Interior.

It' is herebyA 'certied that in Letters Patent o. 628,124, granted July 4, 1899, upon the application of William S. Sharpneck, of Chicago,-Illinois, for an improvement in It is hereby certified that in Letters Patent No. 628,124, granted July 4, 1899, upon the application of William S. Sharpneck, of Chicago, Illinois, for an improvement in Gas-Engines, an error appears in the printed specification requiring correction, as

follows; Page 2, lines 33-34`the compound word exhaust-post should read exhaust port; and that the said Letters Patent should be read with this correction therein that the samemay conform to the record of the case in the Patent Uice.

Signed, counter-signed, and sealed this 18th day of July, A. D.. 1899.

[SEAL] WEBSTER DAVIS,

Assistant Secretary of the Interior. Countersigned C. H. DUELL-7 Cmnmissionm of Palmi-Q. 

